87679947664 has 15 divisors (see below), whose sum is σ = 169882193467. Its totient is φ = 43839381616.

The previous prime is 87679947571. The next prime is 87679947673. The reversal of 87679947664 is 46674997678.

The square root of 87679947664 is 296108.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1147419 + ... + 1221445.

Almost surely, 2^87679947664 is an apocalyptic number.

87679947664 is the 296108-th square number.

It is an amenable number.

87679947664 is a deficient number, since it is larger than the sum of its proper divisors (82202245803).

87679947664 is an frugal number, since it uses more digits than its factorization.

87679947664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148062 (or 74029 counting only the distinct ones).

The product of its digits is 768144384, while the sum is 73.

The spelling of 87679947664 in words is "eighty-seven billion, six hundred seventy-nine million, nine hundred forty-seven thousand, six hundred sixty-four".